svn commit: r325530 - in head/sys: amd64/amd64 arm64/arm64 fs/tmpfs kern mips/mips powerpc/aim powerpc/powerpc sparc64/sparc64 vm x86/iommu
Konstantin Belousov
kostikbel at gmail.com
Wed Nov 8 23:25:35 UTC 2017
On Wed, Nov 08, 2017 at 11:41:15PM +0100, Emmanuel Vadot wrote:
>
> Hello Jeff,
>
> On Wed, 8 Nov 2017 02:39:37 +0000 (UTC)
> Jeff Roberson <jeff at FreeBSD.org> wrote:
>
> > Author: jeff
> > Date: Wed Nov 8 02:39:37 2017
> > New Revision: 325530
> > URL: https://svnweb.freebsd.org/changeset/base/325530
> >
> > Log:
> > Replace manyinstances of VM_WAIT with blocking page allocation flags
> > similar to the kernel memory allocator.
> >
> > This simplifies NUMA allocation because the domain will be known at wait
> > time and races between failure and sleeping are eliminated. This also
> > reduces boilerplate code and simplifies callers.
> >
> > A wait primitive is supplied for uma zones for similar reasons. This
> > eliminates some non-specific VM_WAIT calls in favor of more explicit
> > sleeps that may be satisfied without new pages.
> >
> > Reviewed by: alc, kib, markj
> > Tested by: pho
> > Sponsored by: Netflix, Dell/EMC Isilon
> >
>
> This break armv7 (atleast) kernel :
>
> KDB: debugger backends:
> ddb KDB: current backend:
> ddb Copyright (c) 1992-2017 The FreeBSD
> Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992,
> 1993, 1994 The Regents of the University of California. All rights
> reserved. FreeBSD is a registered trademark of The FreeBSD
> Foundation. FreeBSD 12.0-CURRENT #51 3c355d849c9(HEAD): Wed Nov 8
> 23:24:16 CET 2017
> elbarto at knuckles.blih.net:/usr/home/elbarto/Work/freebsd/obj/usr/home/elbarto/Work/freebsd/freebsd.git/arm.armv7/sys/GENERIC
> arm FreeBSD clang version 5.0.0 (tags/RELEASE_500/final 312559) (based
> on LLVM 5.0.0svn) WARNING: WITNESS option enabled, expect reduced
> performance. panic: inconsistent object(0)/req(8) cpuid =
> 0 time =
Should be fixed by r325566.
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